Beavers and Flow Devices

One potential concern for us when using flow devices to manage beavers near roadways is the development of new conflict sites following flow device installations. In 2003, Callahan published data showing that of the 177 beaver colonies present where flow devices were installed in New England between 1998 and 2003, there were 277 conflict sites, or an average of 1.56 conflict sites per beaver colony.